Method of making carton or can bodies from fibrous sheets.



C. C. WOODS.

METHOD OF MAKING CARTON 0R CAN BOD IES FROM FIBROUS SHEETS.

APPLlCATlON FILED SEPT. 19. 1914.

1 9 1 1 5, I Patented. Dec. 14, .1915.

I 31mm 101,

wibncaoe a ATN FEW? oHAnLEsc. woons, or PHILLIPSBUBG, NEW JERSEY.

METHOD or Maxine canon on. can EonrEs rnom rrisnous SHEETS.

Specificationof Letters Patent. Patented Dec. 14, 1915.

Application filed September 19, 1914. Serial No. 862,483.

To all whom it may concern Be it known that 1, CHARLES C. WooDs,'a citizen ofv-the United States, and residing at Phillipsburg, in the county of Warren and State of New Jersey, have invented a certain new and useful Method of Making Carton or Can Bodies from Fibrous Sheets,

of which the following is a specification,

such as will enable those skilled in the art to which it appertains to make and use the same. x

This invention relates to the manufacture of carton or can bodies from sheets of paper or fibrous material, such as cardboard, pasteboard, or the like, and the invention consists in the method hereinafter described, whereby the manufacture of such carton or can bodies is simplified and made more economical and practical. I

'Heretofore in the manufacture of; boxes from fibrous sheet material, it has been customary to cut the blank, crease it, apply adhesive to the appropriate parts of the blank, fold it and immediately press the gummed parts together, thus completing the box. In practice it has been found, however, that when boxes have been made in this manner, the gummed edges have a tendency to pull apart before the adhesive has a chance to dry and this is especially true where the pasteboard or analogous material of which the box or carton is formed, is folded aro'und a horn or former, and intended to retain the shape of such horn or former. When boxes are made over a hornor former, this tendency of the gummed portions to pull away from-each other is, under the present practice, overcome by means of metallic strips bent so as to form grooves in which the meeting edges of the blanks are inserted, the said strip being then compressed upon the meeting edges of the'blank to form a holding means in addition to the adhesive with which said ends are usually supplied, but this method is cumbersome, expensive and unsatisfactory. It-may-also be stated that in order to make the manufacture of this style of boxes or cans, commercially successful, the articles must be made very rapidly, and the machines must occupy the least possible floor space, and this I accomplish by my invention, which I will now proceed to describe, and which contemplates essentially the application of an adhesive to the meeting edges of the blanks forming the box, allowing said adhesive to dry, applying moisture to the dry adhesive, and pressing together the meeting ends, provided with said adhesive.

In order that my invention may be clearly understood, I have illustrated some of its applied. Fig. 3 is an edge view of the same.

Fig. 4 is a plan viewof a blank with its meeting edges chamfered. Fig. 5 is an edge view of-the same. Fi 6 is a sectional view of a former with a %lank similar to that shown in Figs. 2 and 3,'thereon. Fig. 7 is a similar view of an angularlformer with a blank like that shown in Figs. 4 and'5 thereon.

In the practice of my invention, I provide a sheet of cardboard, pasteboard, or similar thick, heavy strong paper 1 such as is usually employed in making carton or can bodies, and cut therefrom blanks 2 from which the bodies are made. This is the first step in the process and the next step consists in gumming or pasting one or both of the edges of the blank as at 3 that are overlapped and sealed together in forming the body of the carton or can. Before gumming or, pasting, the parts, as above described, the edges to be gummed may be first beveled or chamfered as at 4 so that when overlapped the joint formed by such overlapping will be of the same thickness as other parts of the body of the carton or can. After the gumming or pasting, as above de scribed, the gum or paste is dried, and the blank thus formed may be handled in any desired manner. The next step in forming the body of the carton or can consists in moistening the gum or paste, after which the body of the carton or can is formed by folding the blank on a suitable form which may be either cylindrical as in Fig. 6 or angular in cross section as in Fig. 7, and which may be hollow or solid, and in this operation, the overlapping edges, one. or both of which have been gummed, as described, are pressed together, and this may be done in any suitable way, and'preferably by heated rollers. The various steps of the above process may be carried. out in a single machine and at one place, or b means of a number of machines at one or ifierent places.

ferent machines, and at different places, and

this facilitates and cheapens the process of manufacture by reason of the fact that the blanks may be -'formed and gummed or pasted at one point or place, and the can bodies may be formed at another point or place, and this feature of the invention-additionally renders the separate steps of gumming or pasting, drying the gum or' paste and again moistening said gum or paste, de-

sirable, as it is obvious that much less space would be required for shipping blanks from point to point, than the completed cartons.

Imay also state that in many instances I find it preferable and more effective in carr in out m -recess, to a l moisture in a hegted stat efto the dry adl iezive.

Having fully described my invention, what I claim as new anddesire to secure by Letters Patent, is

1. The method of forming carton or can;

. bodies from fibrous quasi-rigid sheet material which consists in forming a rectangular blank from said material, of a length sufiicient to-permit the meeting ends of the blank when folded to overlap and form 'a box of a predetermined diameter, applying an adheslve to at least one of said meeting ends,

allowing said adhesive" to dry, folding said blank over a suitable former, applying moisture to the part provided with the dry adhesive and pressing the overlapping ends together one upon the other.

- 2. The method of forming carton or can bodies from fibrous quasi rigid sheet mate rial, which consists in forming a rectangular blank from said material, of a length sufficient to permit the meeting edges of the blank when folded to overlap, beveling at pressing the overlapping portions together,

' one upon the other.

-' 3. The method of forming carton or can bodies from fibrous quasi-rigid sheet mate rial, which consists in forming a rectangular blank from said material, of a length sufficient to permit the meeting edges of the blank when folded to overlap, beveling the overlapping portions of said blank, applying an adhesive to both of said overlapping beveled portions, allowing said,adhesive to dry, folding said blank v over a suitable former, applying moisture to the parts provided with the dry adhesive and pressing the overlapping beveled portions together, one upon the other.

In testimony that I claim the foregoing as my invention I have signed my name in presence of'the subscribing witnesses this 11th day of September, 1914.

CHARLES C. wooDs.

-Witnesses: I i

C. MULREANY,

H. E. THOMPSON. 

